Clojure for domain-specific languages : learn how to use Clojure language with examples and develop domain-specific languages on the go / Ryan D. Kelker.

Online resource; title from PDF title page (EBSCO, viewed July 7, 2017).

Includes bibliographical references and index.

Cover; Copyright; Credits; About the Author; About the Reviewers; www.PacktPub.com; Table of Contents; Preface; Chapter 1: An Overview of Domain-Specific Languages with Clojure; Domain-specific languages (DSL); Limited scope; Syntax; Using a DSL; Popular DSLs; A contract between language and domain; The language of trust; Internal versus External DSLs; External DSLs; Internal DSL; Clojure libraries; Characteristics of a Clojure library; The current state of Clojure libraries; Database domains; HTML domain; Formative; Hiccup; Mustache; Clostache; ECMA/JavaScript domain; ClojureScript.

Comparing ClojureScript and JavaScriptAudio domain; Music-as-data; Overtone; Image domains; Summary; Chapter 2: Design Concepts with Clojure; Every function is a little program; A pure function; Floor to roof development; Each function only does one thing; Patterns for success; DRY; KISS; YAGNI; Writing Clojure; Spacing and alignment; Syntax; Name conventions; Collection types; Summary; Chapter 3: Clojure Editing and Project Creation; The origin of Emacs and its usage; Installing and setting up Emacs24; Setting up Emacs; Creating and editing CLJ files in Emacs.

Running a Clojure REPL inside EmacsThe nrepl.el Emacs extension; Leiningen and project management; Installing Leiningen and starting a project; Including Clojure or Java libraries in your project; Compiling your project to a Java JAR; Leiningen; Summary; Chapter 4: Features, Functions, and Macros; Namespaces; Java inside Clojure; Immutability; Dynamic objects; Metadata; Lazy sequences; Destructuring; Functions and arity; Anonymous functions; Macros; Summary; Chapter 5: Collections and Sequencing; Collections; Collections by example; Vectors; Vectors by example; Lists; Lists by example; Maps.

Maps by exampleSets; Sets by example; Sequences; Sequences by example; :let, :while, and :when; Summary; Chapter 6: Assignment and Concurrency; Variables; Transients; Atoms; Agents; Refs; Futures; Promises; Summary; Chapter 7: Flow Control, Error Handling, and Math; Flow control; Object comparison; Casting; Error handling; Arithmetic; Addition and subtraction; Multiplication; Division; Remainder and modulus; Increment and decrement; Greatest and least values; Equality; Summary; Chapter 8: Methods for Abstraction; Creating and constructing classes.

Creating interfaces and implementing them with deftypeUsing records, protocols, and type extensions; Overriding methods with reify and proxy; Working with reify; Implementing interface methods with proxy; Custom symbol definitions with macros; Definitions using records; Making definitions using proxy; Making definitions using deftype; Multimethod polymorphism; Creating the Bottle and Customer classes; Testing the customer-drink methods; Relationships with hierarchies; Resolving parent relationship conflicts; Assertion testing with metadata; Input constraints with :pre.

An example-oriented approach to develop custom domain-specific languages. If you've already developed a few Clojure applications and wish to expand your knowledge on Clojure or domain-specific languages in general, then this book is for you. If you're an absolute Clojure beginner, then you may only find the detailed examples of the core Clojure components of value. If you've developed DSLs in other languages, this Lisp and Java-based book might surprise you with the power of Clojure.

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